What Is Static Pressure in HVAC, and Why Does It Matter?
Static pressure is the resistance your blower pushes against in the ducts and filter. Why it matters for a new furnace or AC, the symptoms and the fixes.
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Central Minnesota Heating and Cooling repairs and replaces furnaces, ACs, heat pumps and boilers in Buffalo (Wright County), about 33 miles from downtown Minneapolis.
Buffalo is the Wright County seat, built around Buffalo Lake and Lake Pulaski, and it runs its own city-owned electric utility, which matters the day you shop for a heat pump or new AC.
Buffalo Municipal Utilities supplies electricity inside the city; addresses in the surrounding townships can be on Xcel Energy or Wright-Hennepin instead.
Updated October 27, 2026 · By Eric Brown, owner, Central Minnesota Heating and Cooling

Around town: Buffalo Lake · Lake Pulaski · Sturges Park · Wright County Government Center · Highway 55
Book in BuffaloBuffalo was platted in 1856 on Buffalo Lake, and as the county seat it already had about 1,900 residents by 1950, more than most towns nearby. That early size shows in the older neighborhoods around downtown, where two-stories and bungalows from the early 1900s through the 1940s went up with coal furnaces or boilers. The 1960s and 70s nearly doubled the town again, from about 2,300 to 4,500 residents, and that growth set the pattern for the ramblers and split-levels on the streets behind downtown.
Between 1990 and 2010 the city more than doubled, from about 6,900 to 15,500 residents, the biggest growth in its history. Homes from the first half of that run often started with 80% or early 90%+ furnaces and R-22 condensers, while the later ones have PVC-vented furnaces, R-410A air conditioners and air exchangers. Growth slowed sharply after 2010, so the city's housing is weighted toward homes that are now 15 to 35 years old.
Buffalo's lake-facing houses lose a lot of heat through glass. A wall of windows toward Buffalo Lake or Lake Pulaski feels drafty in January even when the windows are tight, because the cold glass chills the air beside it and that air falls to the floor. Supply registers under or in front of the glass counter it. The same glass shows condensation first, so turn the humidifier down as the temperature drops. In the boiler homes near downtown, bleed the radiators and check the expansion tank before the heating season.
Older homes near downtown that heat with boilers have no ducts for cooling, and window units have been the default. Ductless mini-splits give those houses quiet, efficient cooling without disturbing plaster, and small-duct high-velocity systems can reach bedrooms through closets and attic space. In the 1960s and 70s split-levels, the upper bedrooms run warm in July; opening the upstairs dampers for summer and closing some of the lower-level ones sends the cool air where it's needed.
MMPA's member programs, offered through Buffalo Municipal Utilities, list rebates for air-source heat pumps and central air conditioners. Xcel Energy's electric rebates apply only if Xcel is on your bill, which is the case in parts of the surrounding townships, where Wright-Hennepin also serves some homes. Gas furnace and boiler rebates come from CenterPoint Energy, which lets you choose your own dealer and wants the application filed in the same calendar year as the install.
Rebate programs change every year; check the utility's current terms before you buy. Our guides: Xcel and CenterPoint rebates, heat pump rebates, what happened to the federal credits.
Central Minnesota Heating and Cooling, owned by Eric Brown and in business since 2009, serves Buffalo and nearby towns in Wright County, about 33 miles from downtown Minneapolis. We're open 7 days, 7am–9pm, and no-heat calls get priority. Call 612-429-3465.
An HVAC service call in Buffalo is a flat $79 trip charge, waived when you approve the repair. You get a written price before any work. Installed prices are on our pricing page.
Inside the city, Buffalo Municipal Utilities, not Xcel Energy. It runs its own programs and rebates, so the terms differ from Xcel's. Gas-side furnace rebates come from CenterPoint Energy. Check which utilities are on your bills, and ask each whether the rebate needs a registered contractor.
We do. We repair and replace hot-water boilers and keep the radiators when they are sound. The usual choice is between a standard-efficiency boiler that uses the existing chimney and a high-efficiency condensing boiler that vents through PVC. The expansion tank, circulator and zone valves deserve a look at the same time, because a new boiler on a waterlogged tank or a sticking zone valve still leaves cold radiators.
Look at the boiler. A steam system has a sight glass showing the water level, a low-pressure gauge and, usually, radiators with a single pipe and a small air vent. A hot-water system has a circulator pump, an expansion tank and radiators with bleed valves. Both can be serviced, but parts, water treatment and replacement options differ, so tell us which one you have when you call.
Often. A room with a lot of glass swings hotter and colder than the rest of the house, and a zone damper with its own thermostat lets the system send it more air only when it needs it. Zoning works best with a two-stage or variable-speed furnace. If that room is on its own duct run or an addition, a ductless head is another way to give it separate control.
Static pressure is the resistance your blower pushes against in the ducts and filter. Why it matters for a new furnace or AC, the symptoms and the fixes.
Read the guideTank or tankless water heater in Minnesota? Gas tankless runs $2,100–$5,600 installed nationally. Cold inlet water, gas and venting needs, and furnace timing.
Read the guideLaying out a multi-zone mini-split in a Minnesota home: sizing each room, one outdoor unit or two, head styles and common layouts. $4,200–$12,500 installed.
Read the guideBrands we service in Buffalo: Carrier · Trane · Lennox · Goodman · Rheem · Mitsubishi Electric · Daikin · American Standard · Navien · Weil-McLain · and every other major brand
Heat out in Buffalo? Call or send a request.